Blowpipe or torch.



A', C. MOGBE. BLOWPIPB OETORGH. urmculon FILED 11:13.28, 1911.

Patented Oct. 31, 1911.

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UNiTED sTATEsPATENT OFFICE,

ARTHUR o. Moena, or OL'ATHE, Kansas, ASSIGNOR To GRAHAM E. SHAND AND ROBERT E. PARSONS, BOTH OF KANSAS CITY, MISSOURI.

BLOWPI'PE OR Tonen To all whom it may concern:

Be it known that I, ARTHUR C. MOGEE, a lcitizen of the United States of America, residing at Olathe, in the county of Johnson and State of Kansas, have invented new and useful Improvements in Blowpipes or Torches, of which the following is a specilication.

This invention relates to a blow pipe or torch of that class which are adapted to use any one of a variety of hydro-carbon gases in combination with pure oxygen, and it has for its object to produce a de'vice of simple and improved construction wherein the stream of oxygen shallbe divided into two separate jets which are intercepted by a plurality of small jets of hydro-carbon gas 1n such a manner that a thorou h admixture shall take place before the mixture is permitted to escape at the point of ignition.

A funther object of the invention is to construct a device of the character described with a nozzle having a. chamberin which a mixing plug is detachably mounted to enable a plug having apertures of different gage or dimensions to be substituted when desired.

With these and other ends in view which will readily appear as the nature of the invention is better understood, the sameconsists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed' out in the drawing.

In the accompanying drawing has been illustrated a simple and preferred form of the invention, it being, however, understoodthat no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modications within the scope of the claims may be resorted to when desired.

In the drawing,-Figure 1 is a vertical Specication of Letters Patent. Patented Oct, 31, 1911. Application filed February 28, 1911. Serial No. 611,346.

let passage 3. The nozzle body is formed with a transverse enlargement 4 having a. cylindrical bore 5 intersecting the outlet passage 3, said bore forming a chamber for the reception of the mixing plug 6 and the retaining plug 7, the latter being threaded into the outer end of the bore 5 to keep the mixing plug is position when seated. The mixengaging a recess 9 at the inner end of the seat or chamber to enable said plug to be lngplug is provided with a pin or dowel 8 A unfailingly seated in the proper position.

The outer end of the mixing plug has been shown as being provided wlth a lug 10 affording a handle to enable it to be conveniently removed by the fingers of the o erator or by a Simple tool, such vas a pair o pliers. A recess 11 for the accommodation of the lug 10 is formed in the inner end of theref/ i taining plug 7. The transverse enlargement 4 of the nozzle has an extension 12 which is provided with a bore 13 which is to be connected in any convenient manner with a source of supply of such combustible gas as it may be desired to use. Pure oxygen is supplied througlh a pipe or duct 14 which is threaded into t e upper portion of the nozzle in communicatlon with the inlet passage 2. v

The mixing plug 6 is provided with an annular groove 15 which communicates at diametrically opposite sides with the passage 3. This groove has been shown as being obliquely disposed, this being rendered necessary owing to the fact that the bores 5 and 3 are not formed at right angles. The mixing plug is provided with a longitudinal recess 16 communicating with the bore' or passage 13 which constitutes the gas inlet, and a plurality of bores 17 of small diameter connect the lower half of the annular groove 15 with the recess 16, the'word lower being employed `to indicate that furnish in connection with each nozzle acomplete outfit of mixing plugs with apertures of various sizes to govern the relative proportions of gas and oxygen to be consumed, the quantity of gas admitted through the passages 17 varying according to the number of said passages as well as the cross sectional area of the passages.

In the operation of the invention the stream of oxygen admitted through the pas# sage 2 and the upper end of the bore 3 will be divided when it encounters the annular groove l5 of the mixing plug, and

the hydro-carbon gas entering through the passage 13 and recess 16 will be ejected through the apertures 17, intersecting the streams of oxygen and commingling thoroughly therewith before the mixture can escape through the lower part of the bore 8, said mixture being ignited at the outlet of said bore. The heat and intensity of the flame will be governed by the relative proportions of pure oxygen and hydro-carbon I gas that may be employed, said proportions being regulated by substituting `a different mixing plug when desired. No matter how high or how low the pressure of gas and a screw driver whereby thedesirediadjustment may be eiected.

Having thus described the invention, what A lar groove communicating with said longitudinal bore, a recess communicating wlth the gas inlet and a plurality of apertures connecting the recess with the annular groove.

2. In a device of the character described,

a nozzle having a longitudinal bore com municating at one end with an oxygen inlet and a transverse bore intersecting the longitudinal bore and communicating at one end with a gas inlet, a mixing plug seated in the transverse bore and having an annular groove communicating with the longitudlnal bore,'s,aid plug being also provided with a recess communicating with the gas inlet and with apertures connecting the .recess with the annular groove, and means for retaining the mixing plug in adjusted position.

In testimony whereof I aiix my signature in presence of two witnesses.

ARTHUR C. MGGEE. 

